123110420353 has 4 divisors (see below), whose sum is σ = 124329335508. Its totient is φ = 121891505200.

The previous prime is 123110420281. The next prime is 123110420369. The reversal of 123110420353 is 353024011321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110478458689 + 12631961664 = 332383^2 + 112392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123110420353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123110421353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609457426 + ... + 609457627.

It is an arithmetic number, because the mean of its divisors is an integer number (31082333877).

Almost surely, 2^123110420353 is an apocalyptic number.

It is an amenable number.

123110420353 is a deficient number, since it is larger than the sum of its proper divisors (1218915155).

123110420353 is a wasteful number, since it uses less digits than its factorization.

123110420353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218915154.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 123110420353 its reverse (353024011321), we get a palindrome (476134431674).

The spelling of 123110420353 in words is "one hundred twenty-three billion, one hundred ten million, four hundred twenty thousand, three hundred fifty-three".